In the first week of July, a record 1,020 people went to the local swimming pool. In the second week, 125 fewer people went to the pool than in the first week. In the third week, 145 more people went to the pool than in the second week. In the fourth week, 224 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four weeks?

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joaobezerra joaobezerra · Answer 1 · 2021-05-30T02:23:28+02:00

Answer:

The percent decrease in the number of people who went to the pool over these four weeks was of 20%.

Step-by-step explanation:

Percent decrease:

The percent decrease is the decrease multiplied by 100 and divided by the initial value.

Decrease was of:

Second week: - 125

Third week: - 125 + 145

Fourth week: -125 + 145 - 224 = -204

Decrease was of 204.

Percent decrease:

Initially 1,020, then a decrease of 204. So

204*100%/1020 = 20%

The percent decrease in the number of people who went to the pool over these four weeks was of 20%.